Datasheet Linear Technology LTC2970

Manufacturer	Linear Technology
Series	LTC2970

Dual I2C Power Supply Monitor and Margining Controller

Datasheets

Download

PDF, 805 Kb, Revision: E, File uploaded: Oct 24, 2017

Extract from the document

Prices

Packaging

	LTC2970CUFD#PBF	LTC2970CUFD#TRPBF	LTC2970HUFD#PBF	LTC2970HUFD#TRPBF	LTC2970IUFD#PBF	LTC2970IUFD#TRPBF
N	1	2	3	4	5	6
Package	4x5 QFN-24 Package Outline Drawing	4x5 QFN-24 Package Outline Drawing	4x5 QFN-24 Package Outline Drawing	4x5 QFN-24 Package Outline Drawing	4x5 QFN-24 Package Outline Drawing	4x5 QFN-24 Package Outline Drawing
Package Code	UFD	UFD	UFD	UFD	UFD	UFD
Package Index	05-08-1696	05-08-1696	05-08-1696	05-08-1696	05-08-1696	05-08-1696
Pin Count	24	24	24	24	24	24

Parametrics

Parameters / Models	LTC2970CUFD#PBF	LTC2970CUFD#TRPBF	LTC2970HUFD#PBF	LTC2970HUFD#TRPBF	LTC2970IUFD#PBF	LTC2970IUFD#TRPBF
ADC	14-Bit	14-Bit	14-Bit	14-Bit	14-Bit	14-Bit
ADC TUE, %	0.5	0.5	0.5	0.5	0.5	0.5
DAC	8-Bit	8-Bit	8-Bit	8-Bit	8-Bit	8-Bit
Demo Boards	DC980A/B,DC2467A	DC980A/B,DC2467A	DC980A/B,DC2467A	DC980A/B,DC2467A	DC980A/B,DC2467A	DC980A/B,DC2467A
Design Tools	LTpowerPlay ,Linduino File	LTpowerPlay ,Linduino File	LTpowerPlay ,Linduino File	LTpowerPlay ,Linduino File	LTpowerPlay ,Linduino File	LTpowerPlay ,Linduino File
Export Control	no	no	no	no	no	no
Features	Tracking, Sequencing, Margining, Internal Temp Monitor, Voltage Monitor, Current Monitor, Cascadable	Tracking, Sequencing, Margining, Internal Temp Monitor, Voltage Monitor, Current Monitor, Cascadable	Tracking, Sequencing, Margining, Internal Temp Monitor, Voltage Monitor, Current Monitor, Cascadable	Tracking, Sequencing, Margining, Internal Temp Monitor, Voltage Monitor, Current Monitor, Cascadable	Tracking, Sequencing, Margining, Internal Temp Monitor, Voltage Monitor, Current Monitor, Cascadable	Tracking, Sequencing, Margining, Internal Temp Monitor, Voltage Monitor, Current Monitor, Cascadable
Function	Digital Power System Manager	Digital Power System Manager	Digital Power System Manager	Digital Power System Manager	Digital Power System Manager	Digital Power System Manager
I/O	SMBus/I2C	SMBus/I2C	SMBus/I2C	SMBus/I2C	SMBus/I2C	SMBus/I2C
Isupply, mA	3.7	3.7	3.7	3.7	3.7	3.7
Monitors	Internal Temp, Voltage (2 Vout, 1 Vin), Current (2)	Internal Temp, Voltage (2 Vout, 1 Vin), Current (2)	Internal Temp, Voltage (2 Vout, 1 Vin), Current (2)	Internal Temp, Voltage (2 Vout, 1 Vin), Current (2)	Internal Temp, Voltage (2 Vout, 1 Vin), Current (2)	Internal Temp, Voltage (2 Vout, 1 Vin), Current (2)
Number of Outputs	2	2	2	2	2	2
Operating Temperature Range, °C	0 to 70	0 to 70	-40 to 125	-40 to 125	-40 to 85	-40 to 85
Supply Voltage Range	4.5V to 15V	4.5V to 15V	4.5V to 15V	4.5V to 15V	4.5V to 15V	4.5V to 15V
Vin Max, V	15	15	15	15	15	15
Vin Min, V	4.5	4.5	4.5	4.5	4.5	4.5

Eco Plan

	LTC2970CUFD#PBF	LTC2970CUFD#TRPBF	LTC2970HUFD#PBF	LTC2970HUFD#TRPBF	LTC2970IUFD#PBF	LTC2970IUFD#TRPBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Other Options

LTC2970-1

Application Notes

Download
Single-Channel Power Supply Monitor with Remote Temperature Sense &mdash AN160
PDF, 462 Kb, File published: Jul 14, 2016
Extract from the document
Application Note 160
July 2016
Single-Channel Power Supply Monitor with Remote
Temperature Sense
Nathan Enger
Introduction
Many applications with a single power regulator can benefit
from the monitoring and control features of a power supply manager, but most power supply manager ICs have
more than one channel. In an application that only has one
power supply, there will be an unused set of DAC and ADC
pins. Instead of letting the unused channel go to waste, we
can use these pins, and a bit of microcontroller code, to
sense remote temperature. The LTCВ®2970 is a 2-channel
power supply monitor and controller. Each channel has
two 14-bit ADCs to measure voltage and current, and
one 8-bit DAC to servo the power supply voltage. It can
drive an attached bipolar junction transistor to make a
delta-VBE measurement, and the microcontroller can use
the measured voltages to calculate temperature. The cost
of the added components is as little as 3 or 4 pennies.
The Circuit
LTC2970 I0 ADC0_A ADC0_B IDAC
IN+ R1 …

Articles

Download
Take the Easy Road to Digitally Managed Power &mdash LT Journal
PDF, 248 Kb, File published: Mar 28, 2006
Extract from the document
LINEAR TECHNOLOGY MARCH 2006 IN THIS ISSUEвЂ¦
COVER ARTICLE
Take the Easy Road to
Digitally Managed Power .1
Andy Gardner Issue Highlights .2
Linear Technology in the NewsвЂ¦.2
DESIGN FEATURES
Cascadable, 7A Point-of-Load
Monolithic Buck Converter .6
Peter Guan I2C Bus Buffer Resolves Stuck Buses,
Eliminates Heavy Load Limitations
and Provides Level Translation .10
George Humphrey Negative Voltage Hot Swapв„ў
Controller with 10-Bit ADC
and I2C Monitoring .13
Zhizhong Hou High Efп¬Ѓciency Nickel Charger
Operating to 34V is Easily
Conп¬Ѓgured to Deliver a
Safe Fast Charge.19
James A. McKenzie Tiny Controller Makes It Easy
to Charge Large Capacitors .22
David Ng MOSFETs Make Sense for Tracking
and Sequencing Power Supplies .24 …

Model Line

Series: LTC2970 (6)

LTC2970CUFD#PBF LTC2970CUFD#TRPBF LTC2970HUFD#PBF LTC2970HUFD#TRPBF LTC2970IUFD#PBF LTC2970IUFD#TRPBF

Manufacturer's Classification

Monitor, Control and Protection > Digital Power System Management > Digital Power System Managers